550145546 has 4 divisors (see below), whose sum is σ = 825218322. Its totient is φ = 275072772.

The previous prime is 550145543. The next prime is 550145567. The reversal of 550145546 is 645541055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 453221521 + 96924025 = 21289^2 + 9845^2 .

It is not an unprimeable number, because it can be changed into a prime (550145543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137536385 + ... + 137536388.

Almost surely, 2^550145546 is an apocalyptic number.

550145546 is a deficient number, since it is larger than the sum of its proper divisors (275072776).

550145546 is a wasteful number, since it uses less digits than its factorization.

550145546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275072775.

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 550145546 is about 23455.1816450012. The cubic root of 550145546 is about 819.3935363075.

The spelling of 550145546 in words is "five hundred fifty million, one hundred forty-five thousand, five hundred forty-six".